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Mock HttpClient C# in .NET 10: custom HttpMessageHandler stubs, DelegatingHandler interceptors, IHttpClientFactory wiring, and WebApplicationFactory tests. Link to article: https://www.devleader.ca/2026/07/02/mock-httpclient-c-delegatinghandler-mock-handlers-and-integration-testing
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Understand what a NuGet package is, how the .nupkg format works, how the NuGet registry operates, and how package restore works in .NET projects. Link to article: https://www.devleader.ca/2026/07/02/what-is-a-nuget-package-nupkg-format-and-the-nuget-registry-explained
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The talks are set for Pure Virtual C++ 2026, our free, one-day virtual conference for the whole C++ community. We're excited to reveal the featured session lineup and the speakers bringing it to you. Ma Link to article: https://devblogs.microsoft.com/cppblog/pure-virtual-cpp-2026-talks-announced
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Social engineering through phishing remains one of the most common tactics for launching cyberattacks. AI-generated phishing email messages now pose a new challenge for security teams managing email systems, significantly raising the risk because of their advanced sophistication. Modern social engineers use generative …
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In this post, we share best practices for reliable multi-turn RL training. We cover how to build a training environment you can trust, set up an external evaluation, design a reward aligned with the end task, manage what changes once the agent runs for multiple turns, and monitor the metrics that tell you when to …
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Toolbox App 3.6 gives you better control over local storage and makes Windows installation failures easier to diagnose. Clean up removable Toolbox App data from Settings The Toolbox App now shows how much removable data it can safely clean up, providing a breakdown for the download cache, previous versions, temporary …
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Today we released the 16.2.0 version of AutoMapper and 14.2.0 version of MediatR:AutoMapper Release NotesMediatR Release NotesThis release is a bit more enterprise-focused, with extensions for setting the license keys via environment variables, fixing some threading issues around license key validation, and Link to …
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The Explorer team was investigating a crash that was occuring at a relatively high rate and found that it took the form of a thread executing from an unloaded third-party DLL. 0:173> k RetAddr Call Site 00000000557c5820 <Unloaded_LibUtils_CloudNs_3.dll>+0x265fe 0000000000000008 <Unloaded_LibU Link to …
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Building automated pipelines with your SQL database projects enables you to build a rich CI/CD ecosystem to ensure that your application is being deployed with good quality code and at high confidence of success. SQL Database Projects are compatible with just about every automation environment because fundamentally …
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IntelliJ IDEA 2026.1.4 is out with some useful fixes. You can update to this version from inside the IDE, using the Toolbox App, or using snaps if you are a Ubuntu user. You can also download it from our website. The latest update brings the following improvements: For a comprehensive overview of the fixes, see the …
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A visitor pattern real-world example in C# building a document export system with HTML, Markdown, and plain text visitors. Link to article: https://www.devleader.ca/2026/07/02/visitor-pattern-realworld-example-in-c-complete-implementation
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Modern cloud platforms hide staggering complexity behind APIs, YAML files, dashboards, CLIs, and developer portals. Infrastructure teams now spend enormous amounts of effort trying to… Link to article: https://build5nines.com/big-thinkers-grace-hopper-the-origins-of-developer-productivity-and-software-abstraction/
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A complete guide to HTTP/3 in .NET 10 -- enabling and using QUIC with HttpClient and ASP.NET Core, including version negotiation, TLS requirements, testing locally, and real-world performance implications. Link to article: https://www.devleader.ca/2026/07/01/http3-in-net-10-enabling-quic-with-httpclient-and-aspnet-core …
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Learn how to create, version, and publish NuGet packages in .NET. This complete guide covers dotnet pack, metadata, versioning, publishing, CI/CD, and more. Link to article: https://www.devleader.ca/2026/07/01/the-complete-guide-to-creating-nuget-packages-in-net
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All modern AI solutions eventually need agents to query or mutate data in Microsoft SQL. Deciding how to do this safely, for example, how to handle NL2SQL, will be an important choice. Next come the twins: authentication and authorization. In this article, we discuss pass-through agentic authentic Link to article: …
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We're excited to introduce US-based frontier open-weight models in AWS GovCloud (US). With this release, Amazon Bedrock now supports OpenAI’s open-weight GPT OSS models (120B and 20B) and NVIDIA Nemotron (Nano 9B v2, Nano 12B v2, Nano 30B, Super 120B) models. In this post, we cover these models and their capabilities, …
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In this post, you will learn how to build a serverless A2A gateway on AWS that hosts multiple agents behind a single domain using path-based routing (/agents/{agentId}). Standard A2A clients work without modification. Link to article: …
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In this post, you will learn how metadata works across configuration, ingestion, and retrieval, explore enterprise use cases including multi-agent and multi-tenant architectures, and discover best practices for implementation. Link to article: …
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In this post, we demonstrate how to implement HippoRAG using a comprehensive AWS stack. We use Amazon Bedrock for LLM capabilities, Amazon Neptune for graph database functionality, Amazon Neptune Analytics for advanced graph algorithms including Personalized PageRank, and Amazon Titan Embeddings for vector …
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In this post, you will learn how Inscribe developed an agentic AI system using Amazon Bedrock that reasons across documents the way an expert fraud analyst would. With this new agentic AI system, Inscribe now detects tampered, fabricated, and AI-generated financial documents in under 90 seconds. This is a 20x …
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